aboutsummaryrefslogtreecommitdiffstats
path: root/src/fpe/fpe.h
blob: fba1652d3571f59f8a6c360d84be9cd6209d06a4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
/*
* Format Preserving Encryption
* (C) 2009 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/

#ifndef BOTAN_FORMAT_PRESERVING_ENCRYPTION_H__
#define BOTAN_FORMAT_PRESERVING_ENCRYPTION_H__

#include <botan/bigint.h>
#include <botan/symkey.h>

namespace Botan {

/*
* Encrypt X from and onto the group Z_n using key and tweak
*/
BigInt fpe_encrypt(const BigInt& n, const BigInt& X,
                   const SymmetricKey& key,
                   const MemoryRegion<byte>& tweak);

/*
* Decrypt X from and onto the group Z_n using key and tweak
*/
BigInt fpe_decrypt(const BigInt& n, const BigInt& X,
                   const SymmetricKey& key,
                   const MemoryRegion<byte>& tweak);

}

#endif